CVE-2026-43370

drm/amdgpu: Fix use-after-free race in VM acquire

HIGH
7.8
CVSS Score
Published: May 8, 2026 at 02:21 PM UTC
Updated: October 19, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix use-after-free race in VM acquire Replace non-atomic vm->process_info assignment with cmpxchg() to prevent race when parent/child processes sharing a drm_file both try to acquire the same VM after fork(). (cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.17 ≤ v < 5.10.2535.11 ≤ v < 5.15.2035.16 ≤ v < 6.1.1676.13 ≤ v < 6.18.196.19 ≤ v < 6.19.96.2 ≤ v < 6.6.1306.7 ≤ v < 6.12.784.177.07.0 rc17.0 rc2ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Vendor states this is fixed in 2c1030f2e84885cc58bffef6af67d5b9d2e7098f (fixed)
Vendor states this is fixed in 46d309996bd9251792d7dafdbaf615cf202b4447 (fixed)
Vendor states this is fixed in 7885eb335d8f9e9942925d57e300a85e3f82ded4 (fixed)
Vendor states this is fixed in 904025fa8bba1d028adade33346372b4ac1a9249 (fixed)
Vendor states this is fixed in 94b7782d0c8024f5b88454241c8d4777076c3786 (fixed)
Vendor states this is fixed in ae87aea330c24f462fc7058ed543ba8bc6798447 (fixed)
Vendor states this is fixed in c658c1c85ec235b7ecfbf8dbfee385b1332088f4 (fixed)
Vendor states this is fixed in e61e355cbe49e585097eee28c15b862bfb1c0668 (fixed)
Vendor states this is fixed in 4.17 (unaffected)
Vendor states this is fixed in 5.10.253 (unaffected)
Vendor states this is fixed in 5.15.203 (unaffected)
Vendor states this is fixed in 6.1.167 (unaffected)
Vendor states this is fixed in 6.12.78 (unaffected)
Vendor states this is fixed in 6.18.19 (unaffected)
Vendor states this is fixed in 6.19.9 (unaffected)
Vendor states this is fixed in 6.6.130 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416CWE-362

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